class Test
{
  def Test()
  {}

  def a(Function f)
  {
    f("test");
//    f();
  }

  def b()
  {
    var l = fun [this](x) { this.thing();  }
    this.a(l)
  }

  def thing()
  {
    print("hello world");
  }
}
var t = Test()
t.b()